Pipe-wrench.



No. 700,037. Patented may 3, |902.

' H. F; Bauman.

PIPE WRENCH.

. (Application Bled Dec. 30,y 1901.)

(No Model.)

M Jefe 'e j' fe/M'f 777/ INE alims PETERS cn.. now-urna., A Hm UNITED STATES PATENT OEETCE.

HENRY F. RENNER, OF ERIE, PENNSYLVANIA, ASSIGNORTO IIOLLANDS MANUFACTURING COMPANY, OF ERIE, PENNSYLVANIA, A CORPORA- TION.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No."700,087, dated May 13, 1902.

Application filed December 30, 1901. Serial No. 87,836. (No model.)

To all whom it 'may con/cern:

Be it known that I, HENRY F. RENNEE, a citizen of the United States, residing at Erie,

in the county of Erie and State of Pennsylf Vania, have invented certain newanduseful Improvements in Pipe-Wrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to improvements in pipe-wrenches, and has for its object the production of a wrench having sliding jaw secured in place and operated by means of an internally-threaded sleeve-nut, so constructed that the sliding jaw has a limited rocking motion with relation to the fixed jaw, where-i by while a firm grip is secured'it canreadily be released.

j These and other features of the construction and operation of my improved pipe-wrench are hereinafter fully set forth and described,"

and illustrated in the accompanying drawings,` in which- Figure lis a side view of my improved pipewrench, partially in elevation and partially in section. Fig. 2 is a transverse section of the wrench on the line an' in Fig. 1.

In the drawings illustrating my invention, A is the handle of the wrench. Upon the end of this handle thereis a fixed jaw B, provided with serrations b in the face thereof. Directly behind jaw B, I make a recess C in the outer surface of the' jaw portion A of the handle A, this recess C being adapted to receive an internally-,screw-threaded` sleeve-nut D, while the opposite face a of the jaw portion A', with which the Isliding jaw E contacts, is preferably slightly, curved, as is clearly shown in Fig. l. The sliding jaw E is preferably straight on its inner face e, which contacts with face d of the part A' of the handle, so that the jaw E willrock thereon to a limited extent. The outer face of the jaw Eris provided with threads e', preferably made square on their faces and inclined on their rear as to present the maximum resistance to the strippihg thereof. The sleeve-nut D is provided with internal threads d, adapted to engage and t the threads e on the'sliding jaw E. The outer end of the slidingjaw E is provided with a projection E' of suitable shape to operate in opposition to the fixed jaw B, and the face thereofiisprovided with serrations e2', adapted to engage a pipe placed between the serrated faces b and e2 of the jaws.

In operation the sliding jaw E is adjusted toward or away from the fixed jaw B by rotating the sleeve-nut D, and when the jaws contact with a pipe placed between them as the handle A is moved in one direction the serrations b and e2 strongly grip the pipe; but when the handle A is moved in the opposite direction the sliding j awE rocks slightly upon the surface a of the handle and releases the' grip of the jaws therefrom.

Having thus described my invention so as to enable others to construct and utilize the same, what I claim as new,- and desire to secure by Letters Patent of the United States,

l. The combination in a pipe-wrench, of a handle, a fixed jaw on the end thereof, a sliding jaw resting against thehandle so that it will rock slightly thereon, an internallythreaded sleeve-nut encircling the sliding jaw and the handle immediately behind the fixed jaw thereon so as to hold the two jaws in place, anda thread on the back of the sliding jaw engaging the thread in said sleeve-nut, substantially as and for the purpose set forth.

2. The combination in a pipe-wrench, of a fixed jaw, a handle thereon havinga recess in its outer, face back of the jaw' thereon, a curved surface on thehandle, a-sliding jaw contacting with said curved, surface, a thread on the outer face of the slidingjaw, and'an internally-screw-threaded sleeve-nut encircling the handle at the recess therein and also the sliding jaw, and engaging the thread thereon, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

- HENRY F. RENNER. Witnesses:

RALPH A. STURGEON, H. J. CURrzE. 

